/**
 * Copyright (c) 2011, Chicken Zombie Bonanza Project
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Chicken Zombie Bonanza Project nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL CHICKEN ZOMBIE BONANZA PROJECT BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package ucf.chickenzombiebonanza.common.sensor;

import java.util.ArrayList;
import java.util.List;

import ucf.chickenzombiebonanza.common.LocalOrientation;

/**
 * 
 */
public class OrientationPublisher extends Sensor {
    
    private LocalOrientation currentOrientation = new LocalOrientation();
    
    private List<OrientationListener> orientationListeners = new ArrayList<OrientationListener>();
    
    public OrientationPublisher() {
        super();
    }
    
    public void updateOrientation(LocalOrientation orientation) {
        updateOrientation(orientation, true);
    }
    
    public void updateOrientation(LocalOrientation orientation, boolean broadcast) {
        if (getSensorState() != SensorStateEnum.PAUSED) {
            currentOrientation = orientation;
            this.setSensorState(SensorStateEnum.ACTIVE);
            if (broadcast) {
                broadcastOrientation();
            }
        }
    }
    
    protected void broadcastOrientation() {
        if(isSensorActive()) {
            for(OrientationListener i : orientationListeners) {
                i.receiveOrientationUpdate(currentOrientation);
            }
        }
    }
    
    public LocalOrientation getCurrentOrientation() {
        return currentOrientation;
    }
    
    public void registerForOrientationUpdates(OrientationListener listener) {
        orientationListeners.add(listener);
    }
    
    public void unregisterForOrientationUpdates(OrientationListener listener) {
        orientationListeners.remove(listener);
    }

    @Override
    public void onPause() {
    }

    @Override
    public void onResume() {        
    }

    @Override
    public void refresh() {
    }

}
